12 13 See our website for more information See our website for more information Fairy Rings Cultural: Reduce excess thatch; aerate to help water penetration; use wetting agents to wet rootzone; apply fertiliser or iron sulphate to mask symptoms of type 2 rings; level depressions with top dressing. For type 3, remove fruiting bodies. Chemical: Some fungicides are available. Addition of wetting agent or applying wetting agent first will help the fungicide penetrate the rootzone. Management Symptoms Type 1: Kills grass or badly damages it Type 2: Stimulates growth Type 3: Do not visually damage the sward but has fruiting bodies Susceptible grass species All grass species susceptible. Time of year May be seen all year round if conditions are conducive. Most common in spring and autumn. Climatic conditions Continual wet/dry cycles. Warm soil temperatures. Turf conditions Light soils, free draining rootzone, added organic matter in new constructions or thatch presence. Red Thread Symptoms Begins as irregular patches with dead leaves interspersed with live plants. Patches become more bleached and may also have a pink tinge. Close inspection will reveal pale pink to red needle-like growths (the red threads). Pink mycelium may also be present in conducive conditions. Susceptible grass species Perennial ryegrass and fescues very susceptible. Bentgrass and annual meadow-grass occasionally affected. Time of year Spring to Autumn. Turf conditions Low fertility, slow growing turf, moisture retentive turf surface, use of plant growth regulators. Cultural: Remove surface moisture (switch when dew occurs); encourage morning sunlight penetration; encourage air movement over the surface; ensure appropriate fertility. Chemical: Effective fungicides are available. Curative control at the first signs of disease is typically optimal. Management
RkJQdWJsaXNoZXIy NzIzMzk0